| 摘要 |
Live images from a plurality of surveillance cameras 10 are encoded for transmission over a transmission link 20 to a remote display apparatus 30, where the transmission link 20 has limited bandwidth. The camera image streams are multiplexed to provide a multiplexed image stream in a multiplexer (14), and then predictive coded in a predictive coding unit (24) to provide a single encoded image stream such as using MPEG2. Ideally, each GOP in the encoded image stream (25) takes images from one of the cameras 10. The encoded image stream (25) reduces bandwidth requirements of multiple live image streams. Preferably, the images are time division multiplexed. |
